SDO HMI 2014-08-04 12:00:39 UT
See sunspots with tool (Click here to study sunspot positions and configurations with tool using white-light and magnetogram images and polarity drawing)
(It is recommended to set high resolution on your display!)
| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 5.25 | 0.00 | 2.67 | 6.70 | 210.69 | -13.59 | 86.75 | 0.2370 | 42.0 | 23.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-08-04 12:00:39 UT
See sunspots with tool (Click here to study sunspot positions and configurations with tool using white-light and magnetogram images and polarity drawing) (It is recommended to set high resolution on your display!) |
| spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 1.81 | 0.00 | 0.91 | 7.17 | 213.81 | -10.47 | 83.05 | 0.1824 | -701.0 | -577.1 | |
| 0.00 | 0.81 | 0.00 | 0.41 | 2.15 | 212.58 | -11.70 | 107.80 | 0.2138 | -831.0 | -746.3 | |
| 0.00 | 1.27 | 0.00 | 0.65 | 7.89 | 208.08 | -16.20 | 82.38 | 0.2800 | 894.0 | 659.1 | |
| 0.00 | 1.36 | 0.00 | 0.70 | 7.64 | 207.96 | -16.32 | 83.30 | 0.2816 | 806.0 | 664.4 | |
| Proj. U | - Projected umbra area in millionths of solar disc, negative values indicate | |
|
that the umbra consists of fragmented regions which cannot be separated without losing umbral area. In this way several spots (intensity minima in the umbra) have a common umbra, e.g. -2 means that the given spot shares an umbra with spot No.2, and the common U value is indicated at spot No.2. |
||
| Proj. WS | - Projected whole spot area in millionths of solar disc, negative values indicate | |
|
that several umbras have a common penumbra, e.g. -7 means that the given umbra shares a penumbra with umbra No.7, and the WS value is indicated at No.7. |
||
| Corr. U | - Corrected umbra area in millionths of solar hemisphere, for negative values see above | |
| Corr. WS | - Corrected whole spot area in millionths of solar hemisphere, for negative values see above | |
| B | - Heliographic latitude B; positive: North, negative: South | |
| L | - Heliographic longitude L | |
| LCM | - Longitudinal distance from the Sun's central meridian | |
| Pos. angle | - Position angle | |
| r | - Distance from the centre of Sun's disc in terms of Sun's radius | |
| MU | - Mean magnetic field within the umbra contour averaged the pixel values with sign. | |
| MP | - Mean magnetic field within the penumbra contour averaged the pixel values with sign. | |